Recent content by SuburbanJohn

Thanks, I did my best with the scientific notation there. Apparently the ^2 doesn't work when superscripting an integer.

Ah, so I guess it would have helped to have been taught the Bohr model! F_{e} = k_{e}\frac{q^2}{r^2} = m_{e}\frac{v^2}{r} v = [k_{e}\frac{q^2}{rm_{e}}]^\frac{1}{2} v = [(8.99 x 10^7)\frac{(1.602 x 10e-19)^2}{(5.29 x 10e-11)(9.10 x 10e-31)}]^\frac{1}{2} v = 2,189,240 \frac{m}{s} =...

If I use the velocity given, I calculate 1.52 x 10^-16 sec for one rev. But I 'have' neither the velocity nor the current in part (a).

So, I have a charge 1.602 x 10^-19 C, a distance 5.29 x 10^-11 m, and a value n = 1. I suppose what has me confused is the cross-sectional area.

This selection comes from the Serway . Beichner, Physics for Scientists and Engineers text that many undergrads are (I'm sure) familiar with! I've looked at this problem on 3 different casual occasions and on one test and still have yet to arrange the concept in my mind... "In the Bohr...